3'' diameter. Includes a 46'' string of 12 Angel Tear LED Lights. These are a standard Mason jar lid with a solar panel mounted flush with the top. When it’s dark, these lids light up. Be sure to charge the battery before use. Set these out in direct sunlight to charge the battery. Great for patio lighting, walkway lighting, garden accents and more. The easy-to-replace battery is included. Measurement: 3'' dia. Includes a 46'' string of 12 Angel Tear LED Lights.